During and after chemotherapy, many cancer patients describe feeling a mental fog, a condition that has been dubbed "chemo brain." Why this happens is unclear, but researchers have found a new clue to understanding this syndrome. ...

Most researchers agree that the key difference between human brains and those of other animals is the size and complexity of our cerebral cortex, the brain's outer layer of neural tissue. We therefore tend to focus our attention ...

The discovery of antidepressant drugs in the 1950s led to the first biochemical hypothesis of depression, known as the monoamine hypothesis. This hypothesis proposes that an imbalance of certain brain chemicals is the key ...

According to the Centers for Disease Control and Prevention (CDC), many teens skip breakfast, which increases their likelihood of overeating and eventual weight gain. Statistics show that the number of adolescents struggling ...